To go Greek or not to go Greek? There are a couple of important things to consider: If you join a sorority or fraternity, you will have a place to live, be surrounded by people who share your interests, and be able to make a contribution to IU and the surrounding area through philanthropy. If you don't . . . well, you can still do all those things, but you won't be bound by any rules or expensive fees. In either case, there are definite pluses, and it really boils down to what is right for you. The atmosphere here doesn't push one way or the other.
IU is different from some schools with a large Greek population because the Greeks here are not smothering in either their size or their prevalence. They do exist, and it is fairly obvious, but if you don't want to think about them, you don't have to. If you're a freshman looking for an immediate portal into getting involved on IU's campus, the Greek system, which has a good reputation and is well-developed, may be the way to go.